Rolls-Royce RB.44 Tay

The Rolls-Royce RB.44 Tay is a British turbojet engine of the 1940s, an enlarged version of the Rolls-Royce Nene designed at the request of Pratt & Whitney.[1] It saw no use by British production aircraft but the design was licence built by Pratt & Whitney as the J48, and by Hispano-Suiza as the Verdon.[2]

For the later turbofan engine, see Rolls-Royce RB.183 Tay.

Tay/Verdon
A Hispano-Suiza Verdon which powered the Dassault Mystere IV, displayed at the Ailes Anciennes Toulouse.
Type Turbojet
Manufacturer Rolls-Royce Limited
Major applications Dassault Mystère IV
Developed from Rolls-Royce Nene
Variants Pratt & Whitney J48

Two early production examples of the Tay were evaluated during 1950 by the Royal Aircraft Establishment (RAE) at Farnborough Airfield, Hampshire, in a specially modified Vickers Viscount.

Variants
RB.44 Tay
Rolls-Royce development engines only, no production.
Hispano-Suiza Tay 250
The Tay built under licence in France.[3]
Hispano-Suiza Tay 250A
The Tay built under licence in France.[3]
Hispano-Suiza Tay 250R
The Tay built under licence in France.[3]
Hispano-Suiza Verdon 350
The Tay developed under licence in France.[4]
Hispano-Suiza Verdon 370
The Tay developed under licence in France.[4]
Pratt & Whitney J48
Main article: Pratt & Whitney J48
The Tay built and developed under licence in the United States.

Applications
Two early Tay engines under test in 1950 by the RAE in a Vickers Viscount
Tay
Verdon

Specifications (Hispano-Suiza Verdon 350)

Data from Flight.[5]

General characteristics
  • Type: Turbojet
  • Length: 103.2 in (2,621 mm)
  • Diameter: 50 in (1,270 mm)
  • Dry weight: 2,061 lb (935 kg)

Components
  • Compressor: Double sided centrifugal compressor
  • Combustors: Nine tubular combustion chambers
  • Turbine: Single-stage turbine
  • Fuel type: AVTUR / JET-A1 / F-34 etc.
  • Oil system: Pressure spray lubricated with scavenging

Performance

See also

Related development

Related lists

References
Wikimedia Commons has media related to RB.44 Tay.
Notes
  1. Connors, p.202
  2. Gunston 2006, p.101.
  3. Wilkinson, Paul H. (1957). Aircraft engines of the World 1957 (15th ed.). London: Sir Isaac Pitman & Sons Ltd. pp. 196–197.
  4. Wilkinson, Paul H. (1957). Aircraft engines of the World 1957 (15th ed.). London: Sir Isaac Pitman & Sons Ltd. pp. 197–198.
  5. "Aero Engines 1956". Flight. 1956. Retrieved 8 January 2013.
Bibliography
  • Connors, Jack (2010). The Engines of Pratt & Whitney: A Technical History. Reston. Virginia: American Institute of Aeronautics and Astronautics. ISBN 978-1-60086-711-8.
  • Gunston, Bill (2006). World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. ISBN 0-7509-4479-X.
  • Kay, Anthony L. (2007). Turbojet History and Development 1930-1960. Vol. 1 (1st ed.). Ramsbury: The Crowood Press. ISBN 978-1-86126-912-6.
  • "Aero Engines 1956". Flight. 1956. Retrieved 8 January 2013.
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